Project : designing an all-in-one compact PCB for AOG
Results of this poll will be made public. Your answers however are anonymous.

The aim of this form is to survey the needs of AOG users from an electronics point of view. The objective is then to design a highly integrated PCB embedding most of the features required by most of the people. I feel the need to design this PCB for myself (I am an engineer in electronics, helping a farmer friend), so I thought I would ask others what is needed need, to make the design as useful as possible (open source of course).

This project comes from the fact that, even if the auto-steer PCB V2 of Brian or other PCB designs available greatly simplify the installation (and I thank them for that), a lot of wiring is still required to get a fully functional setup (USB hub or Ethernet switch, one or more GNSS receivers, MMA / BNO, power supply for the tablet, relays for section control...). For example, below is a picture of my own setup, fully embedded in one box (based on PCB V2, with USB hub, section control not included). Fitting everything in the box took me 3 days.

To reduce this wiring job, decrease the overall size occupied by the electronics and increase the reliability, a solution is to design a more complete PCB. Features embedded on this PCB could include :
    - a USB hub / Ethernet switch
    - sockets for one or two compact GNSS boards (like simpleRTK2Blite, or even GNSS modules themselves)
    - socket for one or several ESP32 if needed
    - adjustable power supply for the tablet / computer
    - relays for section control (or at least a USB output to connect another box)
    - relay(s) for hydraulic lift
    - One main big connector to output everything except SMA, soldered directly on the PCB (this is the one I have in mind : https://belfuse.com/product-detail/modice-modice-le-enclosures)
    - Other stuff if needed

In return, the PCB would be harder to manufacture (probably 4 layers instead of 2), so it would be almost impossible to etch it by yourself and it would cost extra money to order (it may double or triple the order cost compared to a 2 layers board). Also, It would be necessary to use some SMD components which are more difficult to solder by hand (but not impossible with proper solder flux and soldering iron, there are tutorials on YT). You may want to have SMD components soldered by a PCB assembly company (but nothing unfeasible here). I'm aware that it would alter the DIY spirit of the project, but I think this is an acceptable trade-off to get a more compact, reliable and professional looking setup.

Valentin
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My setup (includes a PCB V2, a USB hub, a simpleRTK2B board, a boost converter for the tablet, and all the conenctors needed)
Would you like to have a new PCB design available, with the advantages and disadvantages described above ? *
What do you think about the amount of wires (antenna, power, usb, serial...) needed to setup the autosteer ? *
What connection means would you prefer between AOG and autosteer (Arduino) ? *
What GNSS setup would you prefer ? *
Do you want GNSS antennas to be easy to remove from the machine (to use them on another one for example) ? *
According to your experience, what is the best place for the MMA roll sensor (one antenna setup) ? (you can give more details in the "other" section) *
Required
According to your experience, what is the best place for the BNO compass sensor (one antenna setup) ? (you can give more details in the "other" section) *
Required
Do you feel okay to solder SMD components by hand on your PCB ? (tutorials on YouTube are available, no need to be scared) *
Captionless Image
Would you appreciate having the USB hub / Ethernet switch directly embedded on the PCB ? Wiring would be done using differential pairs of traces, so no more wires and plugs required. *
Would you like to have an adjustable DC power supply output to recharge, for example, a tablet ? *
Would you like to  have a 5V power output to recharge, for example, a cell phone ? *
Where would you like to have the Arduino / ESP32 and relays for section control ? *
How much relays would you like for section control ? *
Would you want the relay for hydraulic lift to be included on the PCB ?
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Do you think the box suggested in the description (Cinch ModICE® LE Enclosures https://belfuse.com/product-detail/modice-modice-le-enclosures) would fit your need ? If not, suggest something else if you can.
Clear selection
If you have other suggestions about this project, it would probably be useful to share it with everyone on the Discourse thread. Otherwise, send me a private message through Discourse.
Results of this poll will be made public. Your answers however are anonymous.
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